Not getting enough sleep can greatly weaken the immune system. Lack of sleep makes you more likely to catch a cold, or more difficult to fight off an infection.
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ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.
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Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
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Oliver Wendell Holmes is credited with introducing the words "anesthesia" and "anesthetic" into the English language in 1846.
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Certain rare plants containing cyanide include apricot pits and a type of potato called cassava. Fortunately, only chronic or massive ingestion of any of these plants can lead to serious poisoning.
Bones change radically in size and shape from newborn to adult, as these cervical vertebrae demonstr
The Increase in Divorce
Atmospheric pressure decreases with increase in altitude.
By 2100, significant change will be in the far northern latitudes, parts of Asia, and Sub-Saharan
Effect of an Increase in R&D in the Follower Country on the Steady State